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Finding the Fourth Proportional to 18,875.04, 28,316.04 and 9,015

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Solution

The fourth proportional to 18,875.04, 28,316.04 and 9,015 is: 13,524.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875.04 : 28,316.04 = 9,015 : x
  2. Step 2: Convert to fraction form
    18,875.04/28,316.04 = 9,015/x
  3. Step 3: Cross multiply
    18,875.04x = 28,316.04 × 9,015
  4. Step 4: Simplify right side
    18,875.04x = 255,269,100.60
  5. Step 5: Solve for x
    x = 255,269,100.60/18,875.04
  6. Step 6: Final answer
    x = 13,524.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.